"The Delta Flume, to be inaugurated on 5 October, is a 300-meter-long water-filled trough that is 9.5 meters high and 5 meters wide. At one end sits a gigantic metal plate called a wave board; four pistons move it back and forth to whip up the kind of waves that the sea can unleash. The waves travel along the flume and crash onto whatever researchers have built at the other end—which could include a novel type of dike, an artificial sand dune or gravel beach, or a pylon used to hold up an offshore wind turbine."
http://news.sciencemag.org/europe/2015/10/machine-produces-largest-humanmade-waves-world
